MONROVIA prefixes in area code 626
NANPA records 34 assigned NXX blocks to rate center MONROVIA in area code 626, 4.6% of the 737 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 13 holders hold those blocks, the largest being FRONTIER CALIFORNIA INC. (11), ONVOY, LLC - CA (5), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3). The earliest assignment on record here is 2001-06-25 and the most recent 2026-04-15. 26 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 317 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 626-205 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2001-06-25 | yes | yes |
| 626-218 | AT&T PACIFIC BELL (COMPETITIVE) | 2012-12-26 | yes | yes |
| 626-239 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 626-249 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 626-256 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-263 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 626-275 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 626-301 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-303 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 626-305 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-357 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-358 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-359 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-386 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 626-408 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 626-415 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 626-471 | AT&T PACIFIC BELL (COMPETITIVE) | – | yes | yes |
| 626-509 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 626-531 | Charter CHARTER IP ENABLED SERVICES, LLC | – | yes | yes |
| 626-599 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 626-605 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 626-619 | Onvoy ONVOY, LLC - CA | 2024-06-03 | yes | yes |
| 626-706 | Onvoy ONVOY, LLC - CA | 2023-08-16 | yes | yes |
| 626-713 | T-Mobile T-MOBILE USA, INC. | 2023-08-17 | yes | yes |
| 626-739 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 626-775 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 626-803 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 626-841 | T-Mobile T-MOBILE USA, INC. | 2002-09-19 | yes | yes |
| 626-843 | Onvoy ONVOY, LLC - CA | 2026-04-15 | yes | yes |
| 626-873 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 626-878 | FRACTEL, LLC | 2022-04-26 | yes | yes |
| 626-879 | FRACTEL, LLC | 2021-12-21 | yes | yes |
| 626-930 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 626-932 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| FRONTIER CALIFORNIA INC. | Frontier | 11 | 32.4% |
| ONVOY, LLC - CA | Onvoy | 5 | 14.7% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 8.8% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 5.9% |
| PACIFIC BELL (COMPETITIVE) | AT&T | 2 | 5.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 5.9% |
| T-MOBILE USA, INC. | T-Mobile | 2 | 5.9% |
| FRACTEL, LLC | – | 2 | 5.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 2.9% |
| PAETEC ITEL, LLC | Windstream | 1 | 2.9% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 2.9% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 1 | 2.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 2.9% |
Frequently asked
Which prefixes belong to MONROVIA in area code 626?
34 blocks: 205, 218, 239, 249, 256, 263, 275, 301, 303, 305, 357, 358 and 22 more, all listed in the table above.
Which carriers have numbers in MONROVIA?
FRONTIER CALIFORNIA INC. (11 blocks), ONVOY, LLC - CA (5 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), PACIFIC BELL (COMPETITIVE) (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is MONROVIA a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.